Mechanical staeteb



. HAUG.

MECHANICAL STARTER FOR EXFLOSIVE ENGINES.

APNIC/mora m50 JULY 12i 19|?.

H, nu mw WITNESSES:

A. 1. HAUG. MECHANICAL STARTER FOR EXPLOSIVE ENGINES. APPLICATION FILED IUYLY I2|`I9Il LSZ. Patented June 3, 1919.

2 SHEETS-SHEET 2.

I/V'ITNESSES.A 1N r/ENTOR.

ANTON LVNAUG, or NASHUA, NEW HAMPSHIRE.

MECHANICAL STARTER ron ExPLosIvEi-ENGINES.

Specification of Letters atent.

Patented J une 3, 1919.

Application filed July 12, 1917. VSerial No. 180,208.

To all whom t may concern.' Y

Be it known that I, ANTON VJ.. HAUG, a citizen of the United States, residing at Nashua, in the county of Hillsborough and State of New Hampshire, have invented'cen tain new and useful Improvements in Mechanical Starters for Explosive Engines, of which the following is a specification.

This invention relates to mechanical devices for starting gas or explosive engines. My purpose is to provide a deviceV which is so actuated by a single powerspring as to `impart a few revolutions to the main shaft of such an engine whereby charges are drawn in, mixed, Vcompressed and ignited until the engine starts running.

A further object of my invention is to Vprovide simple and compact means by which as the engine continues to run, it can be so connected that it will wind up the power spring and that when the spring is wound up, the connection is automatically broken.

In the drawings, Figure l is a front elevation of the device with the casing shown in section and the spring being wound up. Fig. 2 is an elevation as from the left of Fig.

Vl with the casing removed. Fig. 3 is a plan view with the casing removed.` Fig. 4 is a vertical sectional elevation on line'4-4 ofV Fig. 3 ofthe gears, drums, etc., surrounding the starting shaft, the starting shaft itself not being in section. Fig. 5 is an enlarged section from the right on line V5--5 of Fig. 4. Fig. 6 is anV enlarged section'on line f V6--6 of'Fig. 4. Fig. 7 is a side elevation of the brake, brake-bar, and foot pedal. Fig. 8 isan enlarged detail section ofthe automatic cut-off mechanism from the right of line 8--8 of Fig. 2, but showing the spring unwound.

Adjacent to the engine and preferably at one side thereof, is the frame A1 which is fixed to the chassis preferably along side of the engine in any suitable manner, not shown. To the upright portion 10 of this frame is fixed a gear shaft l1. Revoluble upon shaft 1l is a starting gear B fixed to a sleeve 21 through whichshaft 11 passes. This gear is hollowed Vout at22 to receive 'the power` sprin C, the' outer end of which is Xed to starting gear B Vley means of a pin 23. L

Adjacent to starting gear B is winding gear F which is fixed to a sleeve 30 revoluble on sleeve 21 and havinga screwv threaded portion 31.

Winding gear F is hollowed out at 32 on the face which' adjoins spring' C and starting gear B, and the inner Vend of power spring C is fixed to sleeve 30 at 33.

Winding gearV F also is formed with a ratchet 34 with which engages a pawl'35 pivoted to frame A whereby gear F canVV revolve only in a direction which will carry along that end Vof spring F which is attached to sleeve 30 at 33 in suchmanner as to-wind up the spring if the other end is held fast. Y

This arrangement will cause spring YC when woundV up to'unwind carrying'with it starting gear B in the same direction thatV Vdrum 52 which carries the pawls 42.v Gear 51 and drum 52 are revoluble onV starting shaft 4G. Y 'Y Y Y V YThese parts are all so arranged that when spring C unwinds, it revolves main starting gear B, reducing starting gear G, starting shaft 40, ratchet 41, pawls 42, drinn 52, gears 51V and 50, and main engine shaft H inY a direction to start the engine.

To hold the power spring C under tension, I prefer to usea brake drum 44. which is shown as integral with gear G and which must be revoluble with shaft 40' to which .it is made fast by set screw 38.

This brake drum 44, brake strap 45 of any usual construction, pivotedV arm 46 to one end of which. strap'45 is attached, and brake rod 47 attached at one end to the other end of arm 46 and at its other end to a footlever 48 of any usual construction constitute theV When the spring is wound up and itis desired to start the engine, the brake is released byV releasing pawl 90 and the engine is started.VK l V Y K is a reducing winding gear whichengages main winding gear F and is carried by Y a sleeve 60 slidable and rotatable onstarting A shaft a0. Sleeve 60 alsovcarries a clutc member 61 which has a flange 8'1 and is adapted to engage clutch drum 52 when slid into engagement therewith.

Gear K is shown as elidable on sleeve 60, but revohible therewith by reason of a slot 62 into which enters a key projection 63 on sleeve 60 as shown in Fig. 6.

lVhen the `engine 'has started, the brake should be 'applied thus holding shaft 40 against rotation, but permitting the gear 51 and clutch drum 52 to revolve 4treely.

It will be seen that if clutchmember 61 is slid into engagement with-drum 52 after the engine has started, 'ittogether with gears K and F will revolve winding up power spring C :for the next starting operation.

This engaging might be done by the-hand, but I prefer to usea collar T0 which embraces sleeve 60 and is carried at the -end of a member 71 carried by arms 72 fixed to anther'm'ember 73 which is shown a pivoted rod which also carries an -arm 74 operable through they medium or"v another rod 75, suitably connectedthereto, which is slidable in bearings 76, 76 andlras a head 77 within convenient. reach ofthe driver,

I find it desirable however to "provide automatic'shut-off mechanism to prevent the spring'from' being woundup too tight. rlphe mechanism which Ipieier includes fingers 8() which `are proximatev the side 'of aliange 8l on clutchr member '61 which is opposite from collarO. These lingers are'joined together in arl-'arm 86 the end of which fits in an annular groove on4 a threaded collar 82 which is screwed onto the threadedsection 31 of sleeve V30. 'This collar 82carriespins "83, 83 which pass through holes 84 in'a plate V85 fixed to" starting gear sleeve'21.

When the Starting gear B turns, :collar 82 is screwed outward to the position shown by the full lines in Figi S; carrying'arm S6 and fingers'SO, 80 away roni'flange'81,but when the'starting'mechanism is stopped andthe winding mechanism isthrown into operation,:gear Fand 'its sleeve '30' revolve causing collar 82 to-be screwed'back tothe position shownin ,the'ddtted lines-'carrying with it arm 86E and fingers 80, S0 until they engage flange u81 and' force it with clutch member 61 out of 'engagement with clutchdrum 52 thus stopping the winding up operation.

` The ratchet 34 and pawl 35' are the means shown to prevent the'main winding gear and main 'starting' gear* from moving except in one'direction. The ratchet 41 and pawls 42 are the means which connect the starting gearshaft vwith the engine shaft and which cause the lflatter to `revolve orpermit it to revolve in only one direction. lThe sleeve 60 may be considered as a part of clutch member' 61.v It is manifest that various other means besides those shown could be used in place thereof.

My device is simple, compact, and has few parts. It the brake, or other means for holding the starting 'mechanism from revolving, is not set, no harm is done, and if the winding means is not engaged by the action of collar 70, no harm is done except that in either case, the device does not work. After the winding means has started, the automatic shut-ott device stops itat the right predetermined point.

I prefer to make the vstartinggear smaller than the winding gear or the reducing winding gear smaller than the reducing starting gear, or both as shown, so that the winding means will work more slowly but with-more power than the starting means.

All the revoluble parts of'my device are so arranged that they can turn in only onefdirection, and there is no chance-that, by an improper manual setting of theparts, anything should be broken.

It the brake or other means for holding the starting mechanism is released 'and-the clutch members 61 and v52--a1re, by mistake, engaged with the purpose of winding'upfthe spring, no harm is done, for in such acase the spring carrying with it the starting-gear and other parts simply follows the winding gear, the sleeves 30 and 21tur-ningftogether, and the automaticstopping mechanism does not act.

I claim:

l. In a mechanical starting f device for automobile engines, the combination of a main startinggear, a main winding gear,

land afspring one end of which is attached tothe main startingl gear and thegotherto the main winding gear, with `means-to prevent the mainwin'dingfgear from lmov-ing except in one direction, astarting shaft, a reducing starting gear carried thereby in engagement with the main starting gear, a clutch drum revoluble with the mainengine shaft, means which connect it -with the starting gear shaft which cause it torrevolve therewith in one direction, a reducing winding gear in engagement V`with lthe main winding gearyand aclutch-member slidable on the startingl gear f shaft-revoluble' with f the vreducing ywindinggrgear-and adapted to engage the clutch drum .asf'described.

l2'. In a mechanical sta-rtingdeviee forfautomobile engines, the combination of a main startinggear, a main fwindingfgear, and a spring oneend of iwhich isattached to the ymain startingjgear and the otherto the main windinggear, with meansktoprevent the main winding gear from moving except in one-directiom-a fstartinglashaft,

a reducing startinggear: carried thereby in engagement lWith the mam Vstarting;-gear', a

'clutch drum revoluble with the main engine shaft, means which connect it with the starting gear shaft which cause it to revolve therewith in one direction, a reducing winding gear in engagement with the main winding gear, a clutch member slidable on the starting gear shaft, revolun ble with the reducing winding gear and adapted to engage the clutch drum, a manually operable brake adapted to hold the starting mechanism, and manually oper-V able mechanism for engaging the lclutch member with the clutch drum.

3. In a mechanical starting device for automobile engines, the combination of a main startinggear, a main winding gear, and a spring one end of which is attached to the main starting gear and the other to the main winding gear, with means to prevent the main winding gear from moving except in one direction, a starting shaft, a reducing starting gear carried thereby in en gagement with the main starting gear, a clutch drum revoluble with the main engine shaft, means which connect it with the starting gear shaft which cause it to revolve therewith in one direction, a reducing winding gear in engagement with the main winding gear, a clutch member slidable on the starting gear shaft, revoluble with the reducing winding gear and adapted to engage the clutch drum, a manually operable brake adapted to hold the starting mechanism, manually operable mechanism for engaging the clutch member with the clutch drum, and automatic means operable by the revolution of the main winding gear to disengage the clutch member at a predetermined point.

4. In a mechanical starting device for automobile engines, the combination of a fixed gear shaft, a starting gear sleevev revoluble thereon, a starting gear carried by such sleeve, a threaded winding gear sleeve, a winding gear carried by such sleeve, a threaded collar carried by the winding gear sleeve having projecting pins, and a Vplate carried by the starting gear sleeve iaving pin holes through which the pins project, with a spring one end of which is attached to the main starting gear and the other end to the main winding gear, means to prevent the main winding gear from moving except in one direction, a starting shaft, a reducing starting .gear carried thereby in engagement with the main starting gear, a clutch drum revoluble with the main engine and shaft, means which connect it with the starting gear shai't which cause it to revolve and permit it to revolve in one direction, a reducing winding gear of smaller size than the reducing starting gear in engagement with the main winding gear, a clutch member slidable on the starting gear shaft and revoluble with the reducing winding gear which is adapted to engage the clutch drum, manually operable means adapted to hold the starting mechanism, manually operable means for engaging the clutch member with the clutch drum, and an arm carried by the threaded collar on the Winding gear sleeve adapted to automatically disengage the clutch member from the clutch drum.

5. In a mechanical starting device for automobiles, the combination of a gear shaft, a main starting gear and sleeve revoluble thereon, a main winding gear and threaded sleeve revoluble on the starting gear sleeve, and a spring one end of which is attached to the main starting gear and the other end to the main winding gear,

wth means to prevent the main winding gear from moving except in one direction, connections between the main starting gear and the engine shaft adapted for starting the engine, connections between the Ymain engine shaft including a clutch and the main winding gear adapted to wind up the spring, a plate having pin holes carried by the starting gear sleeve, a collar carried by the threaded portion of the winding gear sleeve having pins which pass through the pin holes in the plate, and an arm carried by the collar in operative engagement with said clutch whereby it will disengage the clutch at a predetermined point.

In testimony whereof I have aflixed my signature.

' ANTON J. I-IAUGr.V

Copies of this patent may be obtained for live cents each, by addressing the Commissioner of Patent washington, D. c. 1 

